Thanks so much for all the suggestions. We went to a local pet store (different from where I bought my snake and a much better locally owned store) and bought a thermostat, a Zoo-Med 500R and we are getting ready to get the Acu-Rite digital thermometer/hydrometer tonite. We haven't moved her tank to a quieter place yet but we will first thing in the morning. It is quiet after my kids go to bed, which is now, so she should be fine for the rest of the nite. I also checked out their small feeder rats while I was there and whoever mentioned that she may be able to eat rats was right, I think she can too. So next weekend, we are going to offer her a small rat. This will give her one week in a quieter spot in the house and hopefully we can work out any flaws we have inside her tank with these new readers and thermostats. Do you think we should try live or frozen? I really would prefer frozen but I will feed live if I must. I'm a mouse/rat lover so having a snake is not easy for me to have but I understand the circle of life.

And this might be a stupid question but I'm going to ask it anyway as I can't find my answer anywhere. Like I said in OP, we have a 40 gal reptile tank, screened in lid. We have a towel covering half of the tank to keep the humidity up. I have taken the temp of the substrate on the cool side with my baking thermometer (I will again with the Acu-Rite when it gets here) and it's about 73-75. The air is 76-78 with the baking thermo as well. We have an UTH and a CHE on the same side. Should we switch the CHE to the cool side and leave the UTH for the warm side? Would this cause too much heat for the snake or would this work out best?